Haha yea. I could care less about max speeds or anything like that, since I know that QoS would (attempt to) take care of that anyways. It's just exceeding a total amount of bandwidth per month.
Like I said before, I know that Gargoyle has something for it, but it seems a bit buggy still. The guy is pretty good at releasing new updates though, so hopefully it will be sustainable as a firmware in the future. It's pretty close.
I was just wondering if anything like DD-WRT or Tomato had a bandwidth feature.